Hello all!! We have 5 Plymouth hens and 1 rooster. Last Thursday, during the day I noticed 1 of the hens was missing. She showed up today after being gone for several days. Now she is being picked on by the other chickens and even a few of my Runner ducks chased her, which has never happened before. She is now missing again. Do chickens/birds exile one another? Could she be hatching eggs? Where do chickens nest, in tress or on the ground? If she is nesting in the wild should I try to move her and the eggs to the coop? Sorry for all the questions but I'm at a loss. Thanks so much!!